Duh...
Why not just use the RF PWR adjustment on the front of the transceiver and
save all that costs and wasted heat dissipated by the attenuator.
"Discipline" is the keyword. With proper drive power management, most
linears will operate trouble free for decades.
I have a Clipperton-L (1980) with the original tubes. I also have a
homebrewed 4-400(2) that I built in 1979. I did not even bother to include
an ALC circuit. Both have been trouble free.
73s de Jim
W5IFP
> -----Original Message-----
> From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com]On
> Behalf Of Michael Tope
> Sent: Friday, July 27, 2012 8:37 AM
> To: amps@contesting.com
> Subject: Re: [Amps] Overdrive protection
>
>
> On 7/27/2012 6:13 AM, Michael Tope wrote:
> >
> > With an extra SO-239 on the rear panel and a coax jumper, the amp
> > manufacturer could provide a "loop-thru" for an external power
> > attenuator. This would allow the user
> > to tailor the drive requirements of the amplifier to their transceiver
> > output characteristics by selecting the appropriate attenuator value.
> >
> > 73, Mike W4EF.....................
> >
> Oh, duh, I should have said two extra SO-239s, otherwise you couldn't
> insert the attenuator after the input T/R relay.
>
> Mike W4EF.................
>
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